Where does the USA get most of it's steel?

A train rolls to a stop along a horizontal track without the conductor applying the brakes. What answer choice BEST explains why this occurred? A) The train ran out of momentum. B) The opposing force of friction stopped the train.

The atmosphere is made up of several layers of air. The bottom two layers are the troposphere and the stratosphere. How does the troposphere differ from the stratosphere? A. The troposphere is much warmer than the stratosphere. B.

What can be predicted about the reflected rays? They will not follow the law of reflection. Each will reflect at the exact same angle of reflection. They will all travel in the same direction.

Type the correct answer in the box. Round your answer to the nearest whole number. The mass of Venus is 4.87 * 1024 kilograms, and the mass of Jupiter is 1,898 * 1024 kilograms. The mass of Jupiter is about times the mass of Venus.

A vertical piston-cylinder device contains a gas at a pressure of 100 kPa. The piston has a mass of 5 kg and a diameter of 12 cm. Pressure of the gas is to be increased by placing some weights on the piston.

Charge 1 is - 30 μC, charge 2 is 5 μC, the distance between the charges is 8 cm, and they are located in a vacuum. If the third charge of 3 μC would be placed into position B, i. e.

For water vapor to turn back i to a liquid what do you do to it's temperature

How long will it take a car that is moving at 60 miles per hour to travel 120 miles?

Calculate the force required to give 380kg car an acceleration 10m/s square

A rock is dropped from a sea cliff, and the sound of it striking the ocean is heard 3.2 s later. If the speed of sound is 340 m/s, how high is the cliff?